This spice has more antioxidant activity than turmeric, acai powder, and ginger. In addition to being a potent antioxidant, the health benefits of Vietnamese cinnamon may include the lowering of blood sugar, blood pressure, and LDL cholesterol. Research suggests it may inhibit tau formation in the brain, which is a marker of Alzheimer’s disease. In vitro (lab) research is looking at effects on cancer cell growth. A human clinical trial suggested improvement in knee osteoarthritis. Some weight loss reviews claim success with daily supplementation. Antibacterial and antiviral activities have been seen.Vietnamese cinnamon tastes like the more common cassia variety, but stronger. This is because its bark contains more cinnamaldehyde, which is the essential oil responsible for the sweet, savory, and woody flavor that cinnamon is known for.